在眼镜横梁上的滑动控制杆推动流体向前或向后，以改变那层薄膜的形状，从而根据用户当前的动作来调整焦距。
A slide lever on the bridge of the eyeglasses pushes the fluid forward or backward to alter the shape of that membrane, changing the focal distance depending on what the user is doing.
算例表明一些描述杆几何形状的变量在撞击分析中具有重要作用。
It is also found that some variables describing the geometrical shape of rods play an important role in impact dynamic system.
由于几何形状的差异，阻力杆的准确顺序可能有所不同。因此，清理问题可能会迫使你把杠杆的导向杆的顶部或底部。这是确定。
Because of geometry differences, the exact order of the drag rods may differ. Consequently, clearance issues may force you to place the rods on top or bottom of the steering levers. This is ok.
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